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Factorise : x^2y^2-16​
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3 votes
Factorise : x^2y^2-16​

User Latrisha
by
4.6k points

1 Answer

4 votes

Answer:

(xy - 4)(xy + 4)

Explanation:

x²y² - 16 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b), thus

x²y² - 16

= (xy)² - 4²

= (xy - 4)(xy + 4)

User Amoskaliov
by
4.9k points
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